Wee Ma Tuk Lake Dam
Key Takeaway
Wee Ma Tuk Lake Dam is classified as significant hazard in Illinois. It was completed in 1965 and is 61 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 42 ft (taller than 85.8% in IL) |
| Dam Length | 1,400 ft |
| Dam Type | Earth |
| Max Storage | 3.2K acre-ft |
| Normal Storage | 1.9K acre-ft |
| Surface Area | 124 acres |
| Drainage Area | 19 sq mi |
| Max Discharge | 32,000 cfs |
| Year Completed | 1965 (61 years old) |
| NID ID | IL00217 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
WEE-MA-TUK HILLS DRAINAGE DISTRICT
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Wee Ma Tuk Lake Dam?
Wee Ma Tuk Lake Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Wee Ma Tuk Lake Dam?
Wee Ma Tuk Lake Dam is owned by WEE-MA-TUK HILLS DRAINAGE DISTRICT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Wee Ma Tuk Lake Dam built?
Wee Ma Tuk Lake Dam was completed in 1965, making it 61 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Wee Ma Tuk Lake Dam?
Wee Ma Tuk Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Wee Ma Tuk Lake Dam?
Wee Ma Tuk Lake Dam has a dam height of 42 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Wee Ma Tuk Lake Dam last inspected?
Wee Ma Tuk Lake Dam was last inspected on November 25, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.